Stomach pain

Hey I fairly new to this site as well as cardio training. My question is, yesterday I was at the gym doing my cardio workout(45 min on treadmill) within 18 mins of the workout my left side of my stomach started crampin...now, is this good or bad? While I was in pain I slowed to a walk to see if I could walk it off and it went away as soon as I ended the session. Has anyone had the same problem

Do you mean below your belly button? If so, that was probably just a stitch caused from strenuous exercise -- fairly common, especially if you're new to cardio. If the pain was above your belly button, then that was probably something with your stomach. Stitches aren't not necessarily a bad thing, but anytime you have pain it cannot be too good. Whenever I get a stitch I try to keep the same pace I am on but also push down on the spot causing the pain with one hand (or two if I can without messing up my pace). It usually goes away after a couple minutes, but if it's too painful you should probably stop your workout.

I always found that raising my hands above my head helped get rid of stitches in my side caused by long distance running.

Also possible is stomach cramping due to being quite hungry. I got that today while doing intervals on the treadmill, and could feel my blood sugar dropping. A quick shake as soon as I got home, and I felt a lot better, though the drive home was less than pleasant.

82, If it is a stich from running it means you are not breathing correctly. Almost always on the left side. Try belly breathing(abdominal breathing)-meaning start your breath from lower abdomen then middle chest last upper. The breath should be in the nose out the mouth. This should stop it from even happening. It takes practice, but well worth your time!!